baber/WOPTO huggingface dataset:
Patent GB-1184572-A (GB)
Title: Improvements in Oxygen Detectors.
IPC: G01N27/49
Filed: 1967-05-12
Abstract: 1,184,572. Detecting oxygen. CAMBRIDGE INSTRUMENT CO. Inc. May 12, 1967 [May 24, 1966], No.22103/67. Heading G1N. An oxygen detector comprises two sets of elongate electrodes of different noble metals bridged by an electrolyte of hydrogen saturated conductive liquid wetting the surface of a platelike member of insulating material which the electrodes contact. As shown in Fig. 5, a gold wire 37 and a platinum wire 38 coated with platinum black are wound backwards and forwards between ridges 53, 54 to provide the two sets of electrodes. The plate-like member is made of a mixture of epoxy resin and talc. The detector is mounted within a sealed housing having a gas sample inlet tube 29 and an outlet 29<SP>1</SP> for the gas and any condensed liquids that may collect in annular trough 23. The ends of the electrode wires 37, 38 are wound round leads (19), 20 of gold and platinum respectively. Oxygen content of boiler feedwater. To measure the oxygen content of boiler feedwater, a portion of the water is mixed with hydrogen to produce an atmosphere wherein the quantity of oxygen is proportional to the dissolved oxygen in the feedwater, and this atmosphere is fed to the detector where the oxygen dissolves in the conductive liquid to produce a voltage between the electrodes proportional to the amount of oxygen entering the liquid and the hydrogen will maintain the liquid in a hydrogen saturated condition. Cell with permeable membrane. If the sample gas contains a relatively high amount of oxygen, the sample may be passed through a plastics tube (55, Fig. 8 not shown), through the walls of which oxygen can permeate to the detector. In this case, the hydrogen could be supplied directly to the detector or may be mixed with the sample gas.
Patent GB-719709-A (GB)
Title: Improvements in night driving spectacle lenses
IPC: G02C7/00
Filed: 1951-09-21
Abstract: 719,709. Anti-dazzle spectacles. OPPENHEIMER, M. F., FROMM, A. July 29, 1952 [Sept. 21, 1951]; No. 22129/51. Class 97(1) A pair of spectacles for use by motorists while driving at night has fixed lenses each having a translucent crescentshaped portion at the top and a part only of the right-hand or left-hand side depending on whether the spectacles are for use in left-hand or right-hand driving respectively. The chord 15 joining the horns 16, 17 of the translucent portion 12, which may be a gold coating, may be inclined to the horizontal at angles between 10 degrees and 40 degrees, and the portion 12 may occupy approximately 30 per cent of the lens surface.
Patent GB-174388-A (GB)
Title: Improvements in fluid pressure controllers
IPC: F22D5/14
Filed: 1920-07-26
Abstract: 174,388. Marks, E. C. R., (Veenschoten, V. V.). July 26, 1920. Fluid-actuated valves.-A fluid-pressure controlling valve device, particularly adapted for use as a constant excess-pressure governor for boiler feed-pumps, comprises a mobile element of plunger formation acted on by steam and water pressures and connected to a remote valve stem by a spindle acted on by a counterweight or spring. In the form shown, the mobile element comprises an elastic chamber 12, reinforced by a spring 14 and clamped at one end against a cover 16 by a flange 15 on a member 17 having a passage connected to a pipe 19, whereby water pressure is admitted. The free end of the chamber is supported by a plate 18 on a spindle 28 pivoted to an arm 27 on a rock-shaft 25. The rock-shaft passes out of the actuating-chamber, to which steam pressure is supplied through a pipe 22, and into the valve chamber 26 where it is provided with an arm 30 pivoted to the spindle 31 of the valve 29. A counterweighted arm is arranged on the rock-shaft between the two chambers tending to open the valve. In a modification, a hatleather piston is used in place of the elastic chamber.
Patent GB-686831-A (GB)
Title: Improvements in process for manufacturing hypereutectic cast-iron and products thereof
IPC: C21C1/00
Filed: 1949-08-26
Abstract: In a shaft furnace process for the production of iron, the temperature in the melting zone is controlled by means affecting the formation temperature of the slag.  The resultant slags are self-pulverizing and contain alumina in the form of soluble calcium aluminates from which the alumina may be obtained.  The compositions of the slags lie between silica 8-22 per cent, alumina 20-44 per cent, lime 48-58 per cent part of the lime being replaceable by a molecularly equivalent amount of magnesia. Specification 632,945 is referred to.ALSO:In a process for manufacturing hypereutectic iron containing up to 5.2 per cent C, 0.1-1.0 per cent Si, less than 0.02 per cent S and 0.3 to 5.0 per cent Mn the temperature in the melting zone is adjusted by means affecting the formation temperature of the slag so that different compositions of iron may be obtained for a predetermined composition of slag.  A high slag-formation temperature may be obtained by using pure slag-forming constituents of large size and a low temperature by using small particles of slag-forming substances intimately mixed together and preferably briquetted.  The preferred slag compositions lie within the limits silica 8-22 per cent, alumina 20-44 per cent, lime 48-58 per cent, a portion of the lime being replaceable by a molecularly equivalent amount of magnesia.  The slag should not contain more than 1.0 per cent of iron oxide.  The iron may also contain up to 2 per cent V, up to 0.8 per cent Mo, up to 3.0 per cent Cr, up to 4 per cent Ni and up to 2 per cent Ti. Specification 632,945 is referred to.
Patent GB-1439353-A (GB)
Title: Plastics
IPC: C08J11/06
Filed: 1973-05-10
Abstract: 1439353 Moulding reclaimed plastics PLASTIC RECYCLING Ltd 6 May 1974 [10 May 1973 (2)] 22277/73 Heading B5A [Also in Division C3] Plastics products containing at least 50% of reclaimed thermoplastics are made by mixing particles of relatively flexible thermoplastic with fibres and/or flakes of relatively stiff, plastics, the latter being at least 10% by weight of the mixture, forming a mat of the mixture on a support, heating the mat to soften at least the relatively flexible plastics and consolidate the mat, and cooling the surface of the mat in contact with the support without substantial cooling of the remainder to facilitate removal from the support. Preferably 85-100% of the material is reclaimed plastics and at least 15% is the relatively stiff platics, the fibres or flakes of which have a maximum dimension of 0À1 to 0À3 inch and a thickness of up to 0À03 inch. The stiff plastics may be phenolic, melamine or polyester resin; polystrene; P.V.C.; H.D. polyethylene; A.B.S.; nylon or acrylic resin. The flexible plastics may be pellets, flakes or fibres of L.D. polythene, polypropylene or plasticized P.V.C. A mixture of polystyrene flakes and granules of L.D. polyethylene are dispensed from a hopper on to an endless P.T.F.E. conveyer 10 in the form of mats 18 by means of a splined roller 16. The mats are heated in an oven 22 to soften the polythene and a doctor blade 20 levels the mats as they enter. Water-cooled rollers 24 consolidate the mats 18 and air nozzles 26 cool the conveyer 10 to cool the underside of the mats. A knife 28 lifts the mats and they are immediately transferred to a press 32 for moulding into pallets, tote boxes, or building boards. The press dies need not be heated since sufficient heat is retained in the mats.
Patent GB-686546-A (GB)
Title: Indexing device for document filing systems
IPC: B42F19/00
Filed: 1949-12-21
Abstract: 686,546. Filing papers. NAGY, L. Dec. 21, 1949. No. 22461/49. Class 16. Tabs. An indexing device comprises an L-shaped indexing tab 1 of metal or plastic sheet having a horizontal slit B in the vertical arm A, the slit being a continuation of the horizontal arm C and extending half-way across the arm A, the tab 1 fitting into one of a number of slits or triangle windows 3 cut into a channel 2 along the top edge of a folder or second card. The channel may be formed by folding over the top edge of the folder or card or may be separate and having a gummed flap by which it can be attached to any existing folder.
Patent GB-1528726-A (GB)
Title: Fluid pressure operated rotary stepper actuator
IPC: F01B1/06
Filed: 1977-05-27
Abstract: 1528726 Hydraulic motors; gaseous pressure engines BENDIX CORP 27 May 1977 [14 June 1976] 22559/77 Headings F1A and F1M A liquid or gas driven stepping motor comprises pairs of opposed radial cylinders 40, 46; 42, 48; 44, 50, pistons 61-66 reciprocable in the cylinders, to drive an output cam 54 having depressions 59, 60, and valving for connecting one pair of cylinders to a source of high-pressure fluid Ps while connecting the remaining pairs of cylinders to a source of low-pressure fluid PR. At the end of a rotary movement the cam 54 stops with the pistons pressurized from the source Ps located in the depressions 59, 60. The valving comprises electrically operated valves 30, 32, 34, each valve controlling one pair of cylinders. An electronic control device 22 controls the valves in response to input and feedback signals supplied thereto. The feedback signals are derived from proximity sensors 160, 162 sensitive to the positions of arms 156 on a circular member 154 fixed to an output shaft 52 carrying the cam 54.
Patent GB-285360-A (GB)
Title: Improvements in and relating to cotton or other textile cards
IPC: D01G31/00
Filed: 1927-08-29
Abstract: 285,360. Gullung, P. Feb. 14, 1927, [Convention date]. Stop-motions.-In an arrangement for stopping the doffer of a carding-engine or for separating the feed rollers when the sliver passing to the coiler fails or runs thin, or where the coiler becomes full, a cylindrical fitting 17, Fig. 1, is attached to the coiler can and contains a piston 2. The piston is controlled by a compressed or twisted helicoidal spring 1 and is locked in position by a catch 5. The spoon 24 through which the sliver passes is carried on a rod 20 pivoted on the fitting 17 and when the sliver fails or runs thin it falls over and a finger 21 releases the catch 5. The piston is connected by a wire 11 working in a shaft 12 either to the lever arm controlling the driver to the doffer or to a pin which holds the gears of the feed rollers together.
Patent GB-379497-A (GB)
Title: Improvements in or relating to stitching machines
IPC: B42B2/02
Filed: 1931-08-12
Abstract: 379,497. Book-stitching machines. POLLAK, J. E., 20, Holborn, London.- (Brehmer, Geb. ; Plagwitz, Leipsic, Germany.) Aug. 12, 1931, No. 22779. [Classes 89 (iii) and 112.] The free end of a cantilever sheet-carrier arm or, where there are a, number of such arms, of each arm in turn, is supported during the stitching of the work to ensure proper stitching conditions. As applied to a machine having horizontal sheet-carrier arms 10 radiating from a hub 11 which is rotated intermittently to bring each arm to stitching position and which is then adapted to be raised and lowered on the shaft 12 into stitching position, each arm has an overhung portion 30 with a bevelled underface which is engaged, prior to or during the stitching operation, by a correspondingly shaped end of a bolt 35 mounted in guides 36 and projected by a lever 40 actuated by a cam 43 on a main cam shaft 34 which controls the other operations of the carrier. The stroke of the bolt 35 is adjusted by a screw collar 38a according to the thickness of the work. A set of work-piercing needles carried by a slide 21 is provided in a recess in each arm 10 and these are raised, to assist in holding the work on the arm and to pierce the work, by a lever 29 actuated by a cam 32 on the shaft 34 and engaging a stud 27 at the extremity of the slide 21.
Patent GB-851036-A (GB)
Title: Drill collar stabilizer
IPC: E21B17/10
Filed: 1959-07-02
Abstract: 851,036. Drilling oil wells. DRILCO OIL A drill collar stabilizer comprises a metal TOOLS Inc. July 2, 1959 [July 11, 1958], barrel 10 disposed around a mandrel 12 of a No. 22786/59. Class 85. sub 11, and metal strips 32 resiliently attached to the barrel. The attachment is by a rubber or like layer 20 which is bonded to the barrel 10 and to the strips, an inner rubber or like layer 18 connected to the outer layer through holes 22, being bonded to the barrel to form a bearing for the mandrel 12. The stabilizer is secured between a shoulder 16 on the sub 11 and a screwed subshoulder 14, and the lower part of the barrel is formed with clutch teeth 28 to co-operate with formations 30 on the sub 11 during wash-over operations on the drill collar. The strips 32 are made from a metal which is easily millable and drillable, e.g. aluminium, and are shaped at top and bottom to facilitate the flow of well fluid through the channels between them, and minimize the forcing of abrasive particles between the strips 32 and the walls of the bore. The inner layer 18 has vertical grooves 40 for well fluid to lubricate the relatively rotating surfaces of the mandrel 12 and the layer 18. The stabilizer is of substantially the same diameter as the drill bit, the resilient attachment of the strips 32 permitting them to yield when irregularities in the bore are met.
Patent GB-359584-A (GB)
Title: Improvements in or relating to the manufacture of goods of rubber or similar material
IPC: A43B17/14
Filed: 1930-07-29
Abstract: The process for making goods of sponge rubber described in the parent Specification is modified to avoid the formation of surface skins on the finished articles, by causing a frothy mass of the aqueous dispersions to set with the exception of the outer layer, (i) by dipping a former into a coagulant, then into a froth of latex mixing, and washing away the outer surface of the deposit with water or dilute alkali before the coagulant has penetrated to the outer surface; (ii) by dipping a former into a heat sensitive latex froth, then into a non-heat sensitive latex froth, heating the former, and washing away the non-coagulated outer layer; (iii) by dipping a former into a latex froth, and then treating with a coagulating and swelling medium such as described in Specification 324,988, [Class 70, Indiarubber &c.]. Specification 219,635 and 290,313, [Class 70, Indiarubber &c.], also are referred to.
Patent GB-649866-A (GB)
Title: Improvements in or relating to separators for electric secondary batteries
IPC: H01M50/457
Filed: 1948-08-30
Abstract: 649,866. Batteries. VARLEY DRY ACCUMULATORS, Ltd., FULLER, L., and SZPER, J. A. Aug. 30, 1948, No. 22825. Drawings to Specification. [Class 53] A separator consists of a powdered absorbent material mixed with a fluid binder to form a paste which is applied to a sheet of material forming a reinforcement. The absorbent material may be kieselguhr, aluminium oxide or silicate, powdered ceramic &c. and the binder may consist of vulcanized rubber latex or a synthetic latex not requiring vulcanization, or a suspension or emulsion of synthetic plastic material such as meta-methacrylate or polyvinyl chloride. In an example, kieselguhr with a small quantity of gum karaya is mixed into a. paste with water and added to vulcanized rubber latex and the mixture spread, pasted, extruded, sprayed, brushed or poured on to reinforcing sheets which may consist of porous unsized paper. Other materials suitable for the reinforcing sheets are regenerated cellulose, muslin, and sheets of alginic acid. The absorbent material may be applied to one or both sides of the sheet which may have a thickness not greater than one fifth of the thick. ness of the absorbent layer.
Patent GB-424274-A (GB)
Title: Picking tables for use in the finishing of carpets and the like
IPC: D06H3/04
Filed: 1933-08-16
Abstract: 424,274. Inspecting fabrics. BOUCHER & CO., Ltd., 107, Mill Street, and POYNER, B., 41, Crescent Road, both in Kidderminster, Worcestershire. Aug. 16, 1933, No. 22835. [Class 42 (ii)] Carpets &c. to be inspected &c. are passed from a pile or roll 19 over a table 17 to one or other rollers such as 25 which are driven by power, and the final roll can be rolled down rails 53 into the bearings 21 ready for another passage through the apparatus. As shown a roll of carpet on a cradle 64 fitted with a turntable 67 is pushed between the sides 15 of the table stand and as the size of the roll diminishes the spindle 20 runs down the guide rails 53 in the bearings 21. The carpet &c. passes over rollers 22 at the ends of the table 17 and is wound on the roller 25 driven through reversing gear 59, 58, a belt 43, and a clutch from the power shaft 41. The roller 25 preferably has a squared end 28 which can be secured, as by a pin 33, in the notched end 26 of a bush driven by the gearing 58, 59. When the bush is declutched from the drive shaft 41, reverse rotation may be prevented by a brake.
Patent GB-745465-A (GB)
Title: Preparation of substituted amides of alpha bromo substituted acids
Inventor: WOLF WERNER MAX
IPC: C07C233/00
Filed: 1953-08-20
Abstract: A process for preparing the mono- and dimethyl-, ethyl-, propyl-, isopropyl-, butyl-, isobutyl-, n-amyl-, isoamyl-, and allyl-amides of alpha bromo substituted acetic, propionic, butyric, isobutyric, n-valeric, isovaleric, caproic, isocaproic and alpha ethyl butyric acids, comprises reacting the corresponding amine with the corresponding alpha brom acid bromide or chloride in aqueous solution.  The reaction temperature is below 25 DEG  C., preferably below 20 DEG  C.  The amine is dissolved in water and the acid chloride or bromide added slowly, an aqueous solution of caustic soda or other alkali, being added in the course of the reaction.
Patent GB-517593-A (GB)
Title: Improvements in and relating to coal-face loaders for use in mines
IPC: E21D9/12
Filed: 1938-08-04
Abstract: 517,593. Conveyers. TAYLOR, E. Aug. 4, 1938, No. 23031. [Class 78 (i)] A coal-face loader comprises a relatively short collecting conveyer lying parallel to the coal face and having at one end an inclined-shovel which is adapted to be pressed into the broken coal, and an oblique scraper which is arranged to deflect the coal from the conveyer on to a transverse conveyer delivering to the face conveyer. Rotary gathering arms 15 mounted above the shovel 11, which has hinged sides 12, deliver the coal to the conveyer belt 2 and are driven from the shaft 18 of the tail drum 6 through bevel gearing. The belt passes over rollers 28, 29 on a frame 27 which is movable along the frame 1 of the machine and carries a scraper 30. The end of the scraper projects into a short jigging conveyer 31, Fig. 2, which is mounted by means of bearings 32 about eccentrics on a shaft 33 driven from the shaft of the driving drum 3. Rollers 37 on the conveyer 31 rest on an inclined platform 38 which is adjustable in height and projects from the frame 1. Hinged extensions 39, 40 of the conveyer 31 direct the coal on to the face conveyer 53, and can be swung clear of pit props when the machine is moved along the face by winding the anchored rope 25 on the drum 24. A ratchet wheel 23 secured to the drum is driven by a reversible pawl 22 mounted on an arm 21 which is driven through a rod 20 by an eccentric 19 on one of the shafts 18. When the conveyer 31 bears against a pit prop it remains stationary, but the loader continues to be fed along the face. As soon as the limit of travel of the frame 27 is reached, the parts 39, 40 are folded upwards, and the frame is slid along the loader towards the feeding end. When the limit of movement in this direction is reached, the parts 39, 40 are returned to operative position, and the sequence of operations is resumed. In a modification a conveyer. 31 is placed at each side of the belt 2, and the scraper 30 is adjustable so that it may deflect to either side. When either conveyer arrives at the end of its travel,. it disengages a clutch and thus stops the movement of the loader. In a further modification the conveyer 31 is replaced by a short endless-belt conveyer which can be retracted when it is desired to pass pit props.
Patent GB-740501-A (GB)
Title: Improvements in and relating to knotting devices for yarns, threads and the like
Inventor: COOK DEREK NORMAN
IPC: B65H69/04
Filed: 1953-08-21
Abstract: 740,501. Hand knotters. COOK & CO., MANCHESTER, Ltd. Aug. 13, 1954 [Aug. 21, 1953], No. 23051/53. Class 112. A knotter comprises a quadrant 10 operated by a trigger 11 and engaging a worm 19 on a spindle 14 mounted at its ends in the knotter frame 13, the spindle having at its inner end a pinion 18 meshing with a pinion 21 on the inside end of the knotting bill 20. As shown, the teeth on the pinions 18, 21 are in the ratio of 2 to 1 so that the knotting bill rotates twice during each knotting operation for tying double knots. The gear ratio may alternatively be 1 to 1 for tying single knots. A spring 22 is adapted to return the quadrant to its initial position. The frame is provided with side plates 24 which, it is stated, serve to form or to support means for laying the thread in the proper place for knotting and for removing the knotted thread. The knotter is primarily intended for tying weaver's knots, but may be adapted for tying other knots.
Patent GB-1315894-A (GB)
Title: Method and apparatus for refining molten metals
IPC: C21C5/32
Filed: 1971-04-19
Abstract: 1315894 Refining metals W VON HAUMEDER 19 April 1971 [5 March 1970] 23114/71 Heading C7D [Also in Division F4] A metal melt is covered with a foaming slag, part of the gases escaping from the melt are oxidized with a gas containing O 2  and cooling additives in a confined combustion zone above the melt to heat the additives, an O 2 -containing gas is discharged beneath the surface of the slag cover but above the melt surface to entrain slag, a further part of the exhaust gases and the additives above the melt surface as a liquid refining jet wherein a substantial part of the oxygen reacts to form liquid metal oxides and the jet is directed over substantially all the melt surface. The metal may be pig iron optionally mixed with scrap iron; the refining gas may be high purity O 2 ; which may be mixed with CO, CO 2 , CH 4 , natural gas or steam and the additives (e.g. sponge iron and/or iron ore)are preferably in the form of granules with a diameter not exceeding 5mm. The foamed slag maybe formed by directing jets of O 2 -containing refining gas, with entrained impurity-binding additives (e.g. particulate lime), towards the melt surface at an angle of at least 20 degrees from the vertical of the melt surface. The apparatus is also claimed (See Division F4).
Patent GB-207598-A (GB)
Title: Process for treating materials containing cellulose
IPC: D21C7/00
Filed: 1922-08-28
Abstract: 207,598. Perry, W. P. Aug. 28, 1922. Wort, producing.-Wood or other cellulosic material is heated with a hydrolizing agent, such as a mineral acid, and is pressed to remove saccharine liquor which is fermented to produce alcohol. The residue is distilled in a gas-producer preferably of the kind described in Specification 203,144, [Class 55 (i), Coking &c.]. The wood, fed through a tube 1 by a conveyer therein, falls into a hopper 1<a>, where it is sprayed with a mineral acid from a sprayer 2, and is passed through a gas-tight valve 3 into a hydrolizer 4, consisting of a tube heated at its lower side and containing a screw conveyer which feeds the material to a gas-tight discharge valve 6. The discharged material may be neutralized with a solution or powder from a sprayer 11 and is pressed between a series of rollers 10, the successive pairs of which are closer together. The expressed liquor passes away by a pipe 12 to fermenting and distilling apparatus. The residue is raised by a conveyer to a gas producer. The hydrolizer 4 is fitted with a series of steam discharge pipes 7 leading to a valve 8 which is adapted to maintain a pressure of about 100 lbs. in the hydrolizer. The discharged steam carries away methyl alcohol, furfural, guaiacol and other materials which tend to prevent alcoholic fermentation.